How do I make NH3 to NH4? How would write an ionic equation? Can you show me how to do it? Thank you so much!

NH3 + CuSO4 ->

NH3 adds a hydrogen ion (from HCl or another source of H^+) to become NH4^+. There is no such animal as NH4 as a neutral material.
For the equation, if it is in aqueous solution, forms the complex ammine.
4NH3 + CuSO4 ==> Cu(NH3)4SO4 and ionizes into Cu(NH3)4^+2 + SO4^-2. The copper ammine complex is a bright dark blue.